Western Digital Corp (NASDAQ: WDC) is a data storage company that develops, manufactures, and sells hard disk drive (HDD) devices and solutions. Revenue is generated through transactional sales of HDD products into cloud data centers, enterprise storage systems, edge computing, video surveillance, and client and consumer devices. Western Digital was founded in 1970 and is headquartered in San Jose, California, where it is a member of the S&P 500. On February 21, 2025, the company completed the separation of its Flash business unit into an independent public company, Sandisk Corporation, leaving Western Digital as a pure-play HDD business. The company holds approximately 4,500 active patents worldwide as of the 10-K filed August 14, 2025, and operates manufacturing facilities across the United States, Malaysia, Thailand, the Philippines, China, and Japan. Debt principal was reduced by $2.78 billion during fiscal 2025, and the board authorized a $2.0 billion share repurchase program on May 9, 2025.

Revenue model

Transactional product sales of HDD devices and storage solutions to cloud, enterprise, and consumer customers. No subscription or recurring-fee model is described in the filing.

Products and services

Hard disk drives (HDDs) for cloud data centers, enterprise storage systems, edge computing, video surveillance, and client and consumer devices. Flash storage was separated into Sandisk Corporation on February 21, 2025 and is no longer part of Western Digital.

Customers and end markets

Cloud data center operators, enterprise storage customers, edge computing applications, video surveillance markets, and client and consumer device manufacturers. No specific customer concentration percentages are disclosed in the filing excerpts.

Value-chain role

Vertically integrated developer and manufacturer of HDD storage devices. Operates its own manufacturing facilities and R&D centers globally. Licenses certain third-party technology and holds an IP portfolio of approximately 4,500 active patents worldwide (as of the 10-K filed August 14, 2025).

Geographic exposure

Manufacturing and R&D operations in the United States (San Jose, Fremont, Irvine, Colorado Springs, Rochester), Malaysia (Johor, Kuala Lumpur, Kuching, Penang), Thailand (Bang Pa-In, Prachinburi), the Philippines (Laguna), China (Shenzhen), and Japan (Fujisawa).

Source: SEC 10-K, filed 2025-08-14

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